期刊
AMERICAN JOURNAL OF SURGICAL PATHOLOGY
卷 44, 期 4, 页码 561-565出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/PAS.0000000000001387
关键词
NK-cell enteropathy; natural killer cell; lymphoproliferative disorder
资金
- Intramural NIH HHS [Z01 BC010676-03, Z01 BC011070, Z01 BC010684-03] Funding Source: Medline
Natural killer (NK) cell enteropathy is a lymphoproliferative disorder, initially described by Mansoor and colleagues, that presents in the gastrointestinal tract, and is often mistaken for extranodal NK/T-cell lymphoma on first assessment. This population of cells in this process have an NK-cell phenotype (CD3, CD56, CD2, CD7), lacks evidence of Epstein-Barr virus infection, has germline rearrangement of the T-cell receptor, and a very indolent clinical course. Indeed, many of such patients had been originally diagnosed as having an NK/T-cell lymphoma, and subsequently received chemotherapy. We report a unique case where an indolent lymphoproliferative disorder with features that resemble NK-cell enteropathy is encountered for the first time outside the gastrointestinal tract, specifically in the female genitourinary tract. We provide morphologic, immunophenotypic, and molecular documentation of such, in association with a completely indolent clinical behavior of this type of process.
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